Hey guys,

Once I upgraded the Symfony version from 4.1 to 4.2, I noticed a change of behaviour regarding the CollectionType once I have nested arrays (array of arrays) on the payload, which previously I needed just to set the allow_extra_fields and allow_add options to true, and it identified the whole payload. Nowadays, it seems that is identifying just the fields compatible with the entry_type (And if I set the entry_type as CollectionType::class, it identifies the first level of the following one and so on).

Is this change expected?
Can you point me on the code where it was changed? (or the issue number)

I tried to find it on the changelog, but I couldn't find anything related.

Thanks in advance.